cloud-init-clone.txt

#cloud-config
runcmd:
 - [ touch, /tmp/alive ]

cloud-init-vms.txt

#cloud-config
# Must be a runcmd because of the backtics
runcmd:
 - apt-get -y install linux-headers-`uname -r`

# Include the Gridcentric public repo
apt_sources:
 - source: "deb http://downloads.gridcentric.com/packages/agent/linux/ubuntu/ gridcentric multiverse"
   key: |
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     Version: GnuPG v1.4.11 (GNU/Linux)
     
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     39jHwKm107untAeLKTwt1DSY1HnFEQJl5bwG7HHqz3iD9HCwY5bX4eDrm4AxW0NG
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packages:
 - vms-agent

gc_bless_vm.sh

# Create a VM snapshot
nova live-image-create vms-test-vm vms-test-snapshot

gc_boot_vm.sh

# Boot a VM, passing in the cloud-init-vms.txt file as user-data.
# Note: --flavor, --image, --key_name, and --security_groups should 
#  be set according to your environment.
nova boot --flavor m1.small --image precise-server-cloudimg-amd64 --key_name default --security_groups default --user-data cloud-init-vms.txt --poll vms-test-vm

gc_create_cloud_init.sh

# Download the cloud-init-vms.txt file from github
wget https://gist.github.com/tsmithgc/5223747/raw/cloud-init-vms.txt

gc_create_cloud_init_clone.sh

# Download the cloud-init-vms.txt file from github
wget https://gist.github.com/tsmithgc/5223747/raw/cloud-init-clone.txt

gc_delete_vm.sh

# Delete a VM
nova delete vms-test-clone

gc_discard_vm.sh

# Discard a live-image
nova live-image-delete vms-test-snapshot

gc_example_bless_building.sh

$ nova list
+--------------------------------------+-------------------+--------+-----------------+
| ID                                   | Name              | Status | Networks        |
+--------------------------------------+-------------------+--------+-----------------+
| a4867099-e979-444c-bafb-6c661eac2278 | vms-test-snapshot | BUILD  |                 |
| fac5036a-e899-4251-8c63-979dc0303917 | vms-test-vm       | ACTIVE | private=X.X.X.X |
+--------------------------------------+-------------------+--------+-----------------+

[...]

$ nova list
+--------------------------------------+-------------------+---------+-----------------+
| ID                                   | Name              | Status  | Networks        |
+--------------------------------------+-------------------+---------+-----------------+
| a4867099-e979-444c-bafb-6c661eac2278 | vms-test-snapshot | BLESSED |                 |
| fac5036a-e899-4251-8c63-979dc0303917 | vms-test-vm       | ACTIVE  | private=X.X.X.X |
+--------------------------------------+-------------------+---------+-----------------+

gc_example_check_clone.sh

$ ssh ubuntu@<IP address> "ls -l /tmp/alive"
rw-r--r-- 1 root root 0 Mon DD HH:MM /tmp/alive

gc_example_launch_building.sh

$ nova list
+--------------------------------------+-------------------+---------+-----------------+
| ID                                   | Name              | Status  | Networks        |
+--------------------------------------+-------------------+---------+-----------------+
| f42bed03-3baa-4bed-92c9-6a15bbb4bc47 | vms-test-clone    | BUILD   | private=X.X.X.X |
| a4867099-e979-444c-bafb-6c661eac2278 | vms-test-snapshot | BLESSED |                 |
| fac5036a-e899-4251-8c63-979dc0303917 | vms-test-vm       | ACTIVE  | private=X.X.X.X |
+--------------------------------------+-------------------+---------+-----------------+

[...]

$ nova list
+--------------------------------------+-------------------+---------+-----------------+
| ID                                   | Name              | Status  | Networks        |
+--------------------------------------+-------------------+---------+-----------------+
| f42bed03-3baa-4bed-92c9-6a15bbb4bc47 | vms-test-clone    | ACTIVE  | private=X.X.X.X |
| a4867099-e979-444c-bafb-6c661eac2278 | vms-test-snapshot | BLESSED |                 |
| fac5036a-e899-4251-8c63-979dc0303917 | vms-test-vm       | ACTIVE  | private=X.X.X.X |
+--------------------------------------+-------------------+---------+-----------------+

gc_example_vm_configuration_manual.sh

# Log into the VM
ssh ubuntu@<IP ADDRESS>

# Install software, etc
# [...]

# Create custom post-launch scripts in /etc/gridcentric/clone.d
echo "touch /tmp/alive" | sudo tee /etc/gridcentric/clone.d/30_alive
sudo chmod +x /etc/gridcentric/clone.d/30_alive

# Logout
logout

gc_install_ubuntu_image.sh

# Download the most recent Ubuntu Server 12.04 cloud image
wget http://cloud-images.ubuntu.com/precise/current/precise-server-cloudimg-amd64-disk1.img

# Resize it to 30G
qemu-img resize precise-server-cloudimg-amd64-disk1.img 30G

# Upload it to glance
glance add name=precise-server-cloudimg-amd64 is_public=true container_format=bare disk_format=qcow2 < precise-server-cloudimg-amd64-disk1.img

# Optional: delete the downloaded image
rm precise-server-cloudimg-amd64-disk1.img

gc_launch_vm.sh

# Launch a VM from a live-image
# Note: all parameters are optional.
#  --target is the memory target for the clone
#    virtual machine, in megabytes, and defaults
#    to 0 (no memory target)
#  --user_data defaults to None (no user data)
#  --security-groups defaults to the security groups
#    specified in the original VM
#  --availability_zone defaults to the availability
#    zone specified in the original VM
#  --num-instances defaults to 1
#  --key-name defaults to the key name specified
#    in the original VM
#  --params defaults to None
nova live-image-start --live-image vms-test-snapshot vms-test-clone

gc_launch_vm_cloud_init.sh

# Launch a VM from a live-image, using cloud-init for
#  post-clone reconfiguration.
nova live-image-start --live-image vms-test-snapshot --user-data cloud-init-clone.txt vms-test-clone

gc_verify_agent.sh

# Log into the VM
$ ssh ubuntu@<IP ADDRESS>

[...]

# Verify Agent has been installed
$ ls /etc/gridcentric/
boot  boot.d  clone  clone.d  common